Tyre Cord Straight Knife


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Tyre Cord Straight Knife

The tire cord straight knife achieves high-precision and high-efficiency cord processing in tire inspection, resource recycling, and customized processing through high-strength materials, optimized geometric design, and intelligent control, promoting the transformation of the tire industry towards green manufacturing and circular economy.


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The Application Of Tire Cord Straight Knife

1.Tire section detection and repair: A straight knife is used to cut the tire section, expose the internal curtain structure, facilitate the evaluation of steel wire quality, rubber uniformity, and damage degree, and provide a basis for tire performance testing.

2.In the tire retreading process, a straight knife can accurately remove aged or damaged cord layers, preserving the complete skeleton structure for secondary vulcanization.

3.For waste tires containing steel cord, a straight knife cuts the bonding interface between the cord and rubber through a high hardness cutting edge, achieving efficient separation of steel wire and rubber and improving resource recovery rate.

4.Suitable for pre-treatment of mixed materials (such as steel wire and rubber) in recycled rubber production lines, reducing energy consumption in subsequent crushing processes.

5.In customized production of racing tires, engineering machinery tires, etc., straight knives are used to adjust the density of curtain line distribution or locally cut redundant structures to optimize tire mechanical performance.

 

The Material Of The Tire Cord Straight Knife

1.High carbon steel substrate: The main body of the straight blade is made of high carbon steel material (such as 55SiCr), which has high hardness and wear resistance and can effectively meet the cutting needs of steel cord.

2.Surface coating strengthening: The tool surface is treated with titanium nitride (TiN) or diamond-like carbon (DLC) coating, which significantly improves the wear resistance of the cutting edge and reduces rubber adhesion during the cutting process.

3.Hard alloy welding: For high-strength steel cord (such as all steel radial tires), the hard alloy cutting edge welding process is used to enhance local impact resistance and service life.

 

Material And Performance Compatibility

1.Wear resistance requirement: When cutting steel cord, the cutting tool needs to withstand high-frequency friction between metals. The combination of high carbon steel substrate and coating can reduce blade passivation and extend maintenance cycle.

2.Impact resistant design: When dealing with multi-layer cords (such as heavy-duty truck tires), the hard alloy inlay welding structure can avoid blade cracking and ensure cutting stability.

3.Corrosion resistance optimization: The coating not only improves wear resistance, but also blocks chemical corrosion of steel by rubber vulcanization residues, reducing tool wear.

 

Shape Design Of Tire Cord Straight Knife

1.Right angled blade design: The straight blade adopts a rectangular blade with a straight and non curved edge, which is easy to accurately cut into the inner curtain layer of the tire, especially suitable for cutting multi-layer steel wire curtain structures. The right angled cutting edge can reduce lateral slip during the cutting process, ensure a smooth cross-section, and facilitate subsequent quality inspection or repair operations of the curtain line.

2.Single slope blade angle optimization: The blade is ground on one side to form a 25 ° -30 ° blade angle, which ensures cutting sharpness and avoids the risk of blade breakage caused by too small a blade angle. For high-strength steel cord (such as all steel radial tires), the blade angle can be increased to 35 ° to enhance impact resistance.

3.Thickened blade structure: The blade thickness is usually 15-20mm, and the tool rigidity is improved through thickening design to prevent bending deformation when cutting high-density cords.

 

Geometric Parameter Optimization

1.Blade angle design: In response to the high hardness and strong toughness of steel cord, the straight blade angle is usually set to 25 ° -30 ° to balance cutting efficiency and impact resistance.

2.Blade thickness: The thickness of the cutting tool should reach 15-20mm to ensure structural stability during the cutting process and prevent uneven curtain section caused by deflection.

 

Special Shape Adaptation Scene

1.Segmented blade structure: When dealing with mixed materials such as steel wire and nylon cord, a segmented blade design is adopted. The thin blade in the front section quickly cuts into the rubber layer, and the thick blade in the back section cuts through high-strength cord.

2.Welding of Hard Alloy Cutting Heads: The cutting edge is welded with a hard alloy block (such as YG8) to form a local protruding structure, which improves the wear resistance of the cutting edge and extends its service life. It is suitable for high-intensity operations such as waste tire recycling.

3.Micro serrated edge design: For rubber cord interfaces with severe adhesion, micro serrated texture is added to the edge of the blade to reduce cutting resistance and improve separation efficiency through tearing effect.

 

Summary: The tire cord straight knife is designed with a right angled blade, segmented structure, and hard alloy inlay welding to achieve precise and efficient cord cutting. Its shape parameters need to be dynamically adjusted according to the cord type (steel wire/nylon), arrangement (oblique/meridian), and operating intensity.

 

Selection Suggestions

1.Car tires: tires mainly made of polyester or aramid cord, using coated high carbon steel straight knives can meet the cutting accuracy and efficiency.

2.Construction machinery tires: For all steel radial tires, it is recommended to use hard alloy embedded welding straight knives to meet the continuous cutting needs of high-strength steel cord.

 

Summary: The material selection of the tire cord straight knife needs to be combined with the cord type (steel wire, polyester, etc.) and working condition strength. Through the combination of high carbon steel substrate, coating reinforcement, and hard alloy inlay welding processes, efficient and durable cutting performance can be achieved.

 

Maintenance And Efficiency Enhancement

1.Periodic grinding and calibration: After cutting 500-800 tires, the cutting edge needs to be precision ground, with a single grinding amount controlled within 0.05-0.1mm to maintain geometric accuracy. Use a laser calibrator to check the straightness of the cutting tool. If the deviation exceeds 0.05mm, it needs to be replaced to prevent burrs or delamination on the cutting surface.

2.Homework environment management: During the cutting process, a water mist cooling system is used to reduce the working temperature of the cutting tool (controlled below 80 ℃) and minimize the impact of thermal deformation on cutting accuracy.

 

Summary: The tire cord straight knife achieves high-precision and high-efficiency cord processing in tire testing, resource recycling, and customized processing through high-strength materials, optimized geometric design, and intelligent control, promoting the transformation of the tire industry towards green manufacturing and circular economy.

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Precision Tire Cord Straight Knives for Steel Belt Cutting

Our tire cord straight knives are engineered for clean, efficient cutting of steel-belted tire materials in recycling operations. Manufactured from premium tool steel with specialized heat treatment, these industrial-grade knives maintain razor-sharp edges through extended use. The optimized blade geometry ensures precise cord separation while minimizing wear from abrasive steel wires. Ideal for tire sidewall processing and tread separation, our straight knives deliver consistent performance in both automated and manual tire dismantling systems.

Tire Cord Cutting Knives for High-Volume Recycling

Our tire cord straight knives feature advanced wear-resistant coatings that extend service life in demanding tire processing. The precision-ground cutting edges and reinforced tips withstand repeated contact with steel belts and bead wires. These professional-grade knives are designed for tire recycling plants and retreading facilities, helping operators achieve cleaner cord separation and higher material recovery rates. Trusted by global recyclers, our knives reduce downtime for blade changes while maintaining cutting precision through thousands of tire processing cycles.

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